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Frost dates and planting calendar

Enterprise and Joseph, OR

The typical last spring frost in Enterprise and Joseph is May 24, and the first fall frost is around October 1. Plant peas from Apr 20; plant tomatoes from May 25.

Last spring frostMay 24Typical date. Frost is over by Jul 6 in 9 years out of 10.
First fall frostOctober 1Typical date. Comes as early as Sep 10 in 1 year out of 10.
Frost-free season130 daysYour growing season for frost-tender crops like tomatoes and squash.

NOAA 1991–2020 frost normals, Joseph station. Where these dates come from

About Enterprise and Joseph

Enterprise and Joseph sit in the Wallowa Valley at the foot of the Wallowa Mountains, with Wallowa Lake just south of Joseph. The Joseph weather station sits at about 4,200 feet, and cattle and hay fill the valley floor.

Chance of frost through the year

Frost over in 9 years out of 10: after Jul 6
Tomatoes go out May 25 – Jun 22, under frost cover at first

In 9 years out of 10, the last spring frost has passed by Jul 6 and the first fall frost holds off until Sep 10.

What to plant now

Turn on JavaScript to see what's in season today. The full calendar is below.

High desert. Central Oregon, the high, cold valleys of eastern Oregon, and Idaho mountain towns like McCall and Salmon. Frost is possible almost any month. Use row covers, wall-o-water or cloches for warm crops, and choose short-season varieties.

Gardening in the Columbia Gorge and eastern Oregon. Summers are hot and dry, so plan on irrigation. In the Columbia Gorge, steady wind dries plants out quickly, so stake tall crops and use windbreaks; the higher valleys around La Grande, Baker City and Joseph have shorter seasons.

How the season in Enterprise and Joseph compares

With 130 frost-free days, Enterprise and Joseph have the 75th-longest season of the 86 Oregon, Washington and Idaho towns we cover. They run from 72 days in McCall to 330 days in Brookings and Gold Beach.

The typical last frost here, May 24, is in the middle of the towns we cover in the Columbia Gorge and eastern Oregon: 43 days later than The Dalles and 4 days earlier than John Day.

Late frosts are harder to predict here than in most towns. There are 43 days between the typical last frost and the date it's over in 9 years out of 10, against 19 for a typical town on this site, so keep frost cover handy until July 6.

Even here, sweet potatoes need nearly the whole season, so plant them on time and pick shorter-season varieties when you can.

For a fall and winter garden, sow carrots by July 23 and set out kale plants by August 6. Fall crops here are timed to the first frost (October 1 on average) and to shortening days.

Planting calendar

Pick a group to see when each plant goes in, or search for one.

Frost

Salad greens 7 plants

  • SpinachPlant seeds in the ground
    • Plant Apr 20 – May 25
    • Again for fall Aug 6–27
  • LettucePlant seeds or young plants
    • Indoors Mar 9–23
    • Plant Apr 20 – Jun 15
    • Again for fall Aug 6–20
  • Swiss chardPlant seeds in the ground
    • Plant Apr 26 – Jun 21
    • Again for fall Jul 23 – Aug 6
  • ArugulaPlant seeds in the ground
    • Plant Apr 20 – Jun 1
    • Again for fall Aug 13 – Sep 3
  • CeleryPlant young plants (starts)
    • Indoors Mar 16–30
    • Plant May 25 – Jun 29
  • MâchePlant seeds in the ground
    • Plant Apr 20 – May 25
    • Again for fall Jul 30 – Sep 3
  • RadicchioPlant seeds or young plants
    • Indoors Mar 15–29
    • Plant Apr 26 – May 31
    • Again for fall Jun 25 – Jul 16

Cabbage family 9 plants

  • KalePlant young plants (starts)
    • Indoors Mar 15–29
    • Plant Apr 26 – Jun 7
    • Again for fall Jul 23 – Aug 6
  • BroccoliPlant young plants (starts)
    • Indoors Mar 8–22
    • Plant Apr 26 – May 31
    • Again for fall Jul 9–23
  • CabbagePlant young plants (starts)
    • Indoors Mar 8–22
    • Plant Apr 26 – May 31
    • Again for fall Jul 9–23
  • CauliflowerPlant young plants (starts)
    • Indoors Mar 8–22
    • Plant Apr 26 – May 24
    • Again for fall Jul 2–16
  • Brussels sproutsPlant young plants (starts)
    • Indoors Mar 1–15
    • Plant Apr 26 – Jun 7
  • Bok choyPlant seeds or young plants
    • Indoors Mar 16–30
    • Plant Apr 20 – May 25
    • Again for fall Aug 6–20
  • KohlrabiPlant seeds or young plants
    • Indoors Mar 15–29
    • Plant Apr 26 – Jun 7
    • Again for fall Jul 30 – Aug 13
  • CollardsPlant young plants (starts)
    • Indoors Mar 15–29
    • Plant Apr 26 – Jun 7
    • Again for fall Jul 23 – Aug 6
  • Mustard greensPlant seeds in the ground
    • Plant Apr 20 – Jun 1
    • Again for fall Aug 6–27

Root vegetables 7 plants

  • RadishesPlant seeds in the ground
    • Plant Apr 20 – Jun 15
    • Again for fall Aug 20 – Sep 3
  • CarrotsPlant seeds in the ground
    • Plant Apr 26 – Jun 21
    • Again for fall Jul 9–23
  • BeetsPlant seeds in the ground
    • Plant Apr 26 – Jun 21
    • Again for fall Jul 23 – Aug 6
  • PotatoesPlant seed potatoes
    • Plant Apr 26 – Jun 7
  • TurnipsPlant seeds in the ground
    • Plant Apr 20 – Jun 1
    • Again for fall Jul 30 – Aug 13
  • ParsnipsPlant seeds in the ground
    • Plant Apr 26 – Jun 7
  • Sweet potatoesPlant rooted cuttings (slips)
    • Plant Jun 5–26

    Tight season: choose an early variety.

Onion family 4 plants

  • OnionsPlant young plants or sets
    • Plant Apr 20 – May 25
  • GarlicPlant cloves
    • Fall Sep 20 – Oct 20
  • LeeksPlant young plants (starts)
    • Indoors Feb 15 – Mar 1
    • Plant Apr 26 – Jun 7
  • ShallotsPlant bulbs
    • Fall Sep 20 – Oct 20

Peas and beans 4 plants

  • PeasPlant seeds in the ground
    • Plant Apr 20 – Jun 1
  • Bush beansPlant seeds in the ground
    • Plant May 31 – Jul 12

    Frost possible until about Jul 6: keep frost cover handy.

  • Pole beansPlant seeds in the ground
    • Plant May 31 – Jul 5

    Frost possible until about Jul 6: keep frost cover handy.

  • Fava beansPlant seeds in the ground
    • Plant Apr 20 – May 25

Tomatoes and summer crops 6 plants

  • Sweet cornPlant seeds in the ground
    • Plant May 31 – Jul 5

    Frost possible until about Jul 6: keep frost cover handy.

  • TomatoesPlant young plants (starts)
    • Indoors Mar 30 – Apr 13
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

  • PeppersPlant young plants (starts)
    • Indoors Mar 27 – Apr 10
    • Plant Jun 5–26

    Frost possible until about Jul 6: keep frost cover handy.

  • EggplantPlant young plants (starts)
    • Indoors Mar 27 – Apr 10
    • Plant Jun 5–26

    Frost possible until about Jul 6: keep frost cover handy.

  • TomatillosPlant young plants (starts)
    • Indoors Mar 30 – Apr 13
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

  • Ground cherriesPlant young plants (starts)
    • Indoors Apr 6–20
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

Squash, cucumbers and melons 5 plants

  • CucumbersPlant seeds or young plants
    • Indoors Apr 27 – May 4
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

  • Zucchini and summer squashPlant seeds or young plants
    • Indoors Apr 27 – May 4
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

  • Winter squashPlant seeds or young plants
    • Indoors Apr 27 – May 4
    • Plant May 25 – Jun 15

    Frost possible until about Jul 6: keep frost cover handy.

  • MelonsPlant seeds or young plants
    • Indoors May 8–15
    • Plant Jun 5–26

    Frost possible until about Jul 6: keep frost cover handy.

  • PumpkinsPlant seeds or young plants
    • Indoors Apr 27 – May 4
    • Plant May 25 – Jun 15

    Frost possible until about Jul 6: keep frost cover handy.

Herbs 13 plants

  • BasilPlant young plants (starts)
    • Indoors Apr 24 – May 8
    • Plant Jun 5 – Jul 3

    Frost possible until about Jul 6: keep frost cover handy.

  • CilantroPlant seeds in the ground
    • Plant Apr 20 – Jun 8
    • Again for fall Aug 13–27
  • ParsleyPlant seeds or young plants
    • Indoors Mar 1–15
    • Plant Apr 26 – Jun 14
  • DillPlant seeds in the ground
    • Plant Apr 26 – Jun 28
  • ChivesPlant seeds or young plants
    • Indoors Mar 1–15
    • Plant Apr 26 – Jun 21
  • MintPlant young plants
    • Plant Apr 26 – Jun 21
  • RosemaryPlant young plants
    • Plant Apr 26 – Jun 14
  • ThymePlant young plants
    • Plant Apr 26 – Jun 21
  • OreganoPlant young plants
    • Plant Apr 26 – Jun 21
  • LavenderPlant young plants
    • Plant Apr 26 – Jun 21
  • SagePlant young plants
    • Plant Apr 26 – Jun 21
  • Lemon balmPlant young plants
    • Plant Apr 26 – Jun 21
  • TarragonPlant young plants
    • Plant Apr 26 – Jun 21

Berries 10 plants

  • StrawberriesPlant young plants
    • Plant Apr 26 – Jun 7
  • BlueberriesPlant potted or bare-root bushes
    • Plant Apr 26 – Jun 14
  • RaspberriesPlant bare-root canes
    • Plant Apr 26 – Jun 7
  • BlackberriesPlant bare-root or potted canes
    • Plant Apr 20 – Jun 8
  • GrapesPlant bare-root or potted vines
    • Plant Apr 20 – Jun 15
  • Hardy kiwiPlant potted vines
    • Plant Apr 26 – Jun 14
  • HoneyberriesPlant potted bushes
    • Plant Apr 20 – Jun 15
  • CurrantsPlant bare-root or potted bushes
    • Plant Apr 20 – Jun 15
  • GooseberriesPlant bare-root or potted bushes
    • Plant Apr 20 – Jun 15
  • ElderberriesPlant bare-root or potted shrubs
    • Plant Apr 20 – Jun 15

Perennial vegetables 5 plants

  • AsparagusPlant dormant crowns
    • Plant Apr 26 – Jun 7
  • RhubarbPlant dormant crowns
    • Plant Apr 20 – Jun 1
  • ArtichokesPlant young plants (starts)
    • Plant Apr 26 – Jun 7
  • SorrelPlant seeds or young plants
    • Plant Apr 20 – Jun 15
  • HorseradishPlant root cuttings
    • Plant Apr 20 – Jun 1

Fruit and nut trees 11 plants

  • Apple treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Pear treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Plum treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Cherry treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Fig treesPlant potted trees
    • Plant Apr 26 – Jun 21
  • Peach treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Hazelnut treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Persimmon treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Asian pear treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Quince treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15
  • Mulberry treesPlant bare-root or potted trees
    • Plant Apr 20 – Jun 15

Native plants 15 plants

Flowers 13 plants

  • DahliasPlant tubers
    • Plant May 25 – Jun 22

    Frost possible until about Jul 6: keep frost cover handy.

  • SunflowersPlant seeds in the ground
    • Plant May 31 – Jul 12

    Frost possible until about Jul 6: keep frost cover handy.

  • Sweet peasPlant seeds in the ground
    • Plant Apr 20 – May 25
  • TulipsPlant bulbs
    • Fall Sep 20 – Oct 20
  • DaffodilsPlant bulbs
    • Fall Sep 20 – Oct 20
  • ZinniasPlant seeds in the ground
    • Plant May 31 – Jul 12

    Frost possible until about Jul 6: keep frost cover handy.

  • PeoniesPlant bare-root divisions
    • Fall Sep 20 – Oct 20
  • CosmosPlant seeds or young plants
    • Indoors Apr 19 – May 3
    • Plant May 31 – Jul 12

    Frost possible until about Jul 6: keep frost cover handy.

  • NasturtiumsPlant seeds in the ground
    • Plant May 31 – Jul 12

    Frost possible until about Jul 6: keep frost cover handy.

  • MarigoldsPlant seeds or young plants
    • Indoors Apr 13–27
    • Plant May 25 – Jun 29

    Frost possible until about Jul 6: keep frost cover handy.

  • CalendulaPlant seeds in the ground
    • Plant Apr 26 – Jun 14
    • Again for fall Jul 23 – Aug 6
  • RanunculusPlant soaked corms
    • Plant Apr 26 – May 31
  • SnapdragonsPlant seeds or young plants
    • Indoors Feb 15 – Mar 1
    • Plant Apr 26 – Jun 7

New to this? Read the beginner's guide or look up a term in the glossary.

ZIP codes that use these dates: 97828, 97846, 97885, 97857. Look up another ZIP.

Where these dates come from

The frost dates for Enterprise and Joseph come from NOAA's Joseph weather station, about 6 miles southeast of Enterprise and less than a mile from Joseph, at 4,180 feet. It's the closest weather station to Enterprise and Joseph with NOAA's 1991–2020 frost records. It's a NOAA cooperative station, not an airport station.

They're NOAA's 1991–2020 climate normals: 30-year averages, not a forecast. How we pick each town's station.

Common questions about frost in Enterprise and Joseph

When is the last frost in Enterprise and Joseph?

May 24 in a typical year. Frost is over by July 6 in 9 years out of 10, Tender plants like tomatoes wait longer than that, for warm soil: see the tomato question below.

When is the first frost in Enterprise and Joseph?

Around October 1. It comes as early as September 10 in 1 year out of 10.

When can I plant tomatoes in Enterprise and Joseph?

Set out tomato plants May 25 – Jun 22, after starting seeds indoors Mar 30 – Apr 13. Keep frost cover handy until about Jul 6.

When should I plant garlic in Enterprise and Joseph?

Plant garlic cloves Sep 20 – Oct 20, and harvest next summer when the lower leaves turn brown.

How long is the growing season in Enterprise and Joseph?

About 130 frost-free days, shorter than most of the 86 Oregon, Washington and Idaho towns we cover.

Nearby areas with similar weather

All town calendars or look up your ZIP.